首页|Curing and thermal degradation reactions of Nano-Alumina filled natural rubber latex foams
Curing and thermal degradation reactions of Nano-Alumina filled natural rubber latex foams
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NSTL
Elsevier
Thermal characteristics and kinetics of the curing reaction of natural rubber latex foam (NRLF) incorporated with 0-3 phr (parts per hundred rubber) nano-alumina (NA) were comprehensively investigated. The kinetics of thermal degradation reaction of the vulcanized NRLF-NA was also modeled through a suitable kinetic mechanism, according to the Coats-Redfern (CR) model. Moreover, the foam crosslinking degree was determined via using the swelling method and the Flory-Rehner (FR) equation to create a deep insight into the impact of NA and its content on the foam network structure. The results showed that the filler of NA led to increasing the heat distribution within the compound and followed by the significant effects on the characteristics and kinetics of the vulcanization reaction, and as well as the foam crosslink density. This phenomenon caused the variation of the thermal stability, secondary crosslinking of the cured NRLF-NA and the thermal degradation mechanism. The resultant data indicated that the addition of 1 phr NA to the compound led to the highest thermal distribution which resulted in the latex foam with unfavorable thermal stability and degradation. Whereas, the NRLF-NA thermal properties were improved with increasing the loading content of NA, after 1 phr NA.
Natural rubber latex foam (NRLF)Curing reactionCrosslink density Kinetics and thermodynamicsThermal degradationTEMPERATURESTABILITYMECHANISM
NSTL
Elsevier
